toolbar.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

wxToolBar::~wxToolBar()
{
#if wxMAC_USE_NATIVE_TOOLBAR
    if (m_macHIToolbarRef != NULL)
    {
        // if this is the installed toolbar, then deinstall it
        if (m_macUsesNativeToolbar)
            MacInstallNativeToolbar( false );

        CFIndex count = CFGetRetainCount( m_macHIToolbarRef ) ;
        wxASSERT_MSG( count == 1 , wxT("Reference Count of native control was not 1 in wxToolBar destructor") );

        CFRelease( (HIToolbarRef)m_macHIToolbarRef );
        m_macHIToolbarRef = NULL;
    }
#endif
}

bool wxToolBar::Show( bool show )
{
    WindowRef tlw = MAC_WXHWND(MacGetTopLevelWindowRef());
    bool bResult = (tlw != NULL);

    if (bResult)
    {
#if wxMAC_USE_NATIVE_TOOLBAR
        bool ownToolbarInstalled = false;
        MacTopLevelHasNativeToolbar( &ownToolbarInstalled );
        if (ownToolbarInstalled)
        {
            bResult = (IsWindowToolbarVisible( tlw ) != show);
            if ( bResult )
                ShowHideWindowToolbar( tlw, show, false );
        }
        else
            bResult = wxToolBarBase::Show( show );
#else

        bResult = wxToolBarBase::Show( show );
#endif
    }

    return bResult;
}

bool wxToolBar::IsShown() const
{
    bool bResult;

#if wxMAC_USE_NATIVE_TOOLBAR
    bool ownToolbarInstalled;

    MacTopLevelHasNativeToolbar( &ownToolbarInstalled );
    if (ownToolbarInstalled)
    {
        WindowRef tlw = MAC_WXHWND(MacGetTopLevelWindowRef());
        bResult = IsWindowToolbarVisible( tlw );
    }
    else
        bResult = wxToolBarBase::IsShown();
#else

    bResult = wxToolBarBase::IsShown();
#endif

    return bResult;
}

void wxToolBar::DoGetSize( int *width, int *height ) const
{
#if wxMAC_USE_NATIVE_TOOLBAR
    Rect    boundsR;
    bool    ownToolbarInstalled;

    MacTopLevelHasNativeToolbar( &ownToolbarInstalled );
    if ( ownToolbarInstalled )
    {
        // TODO: is this really a control ?
        GetControlBounds( (ControlRef) m_macHIToolbarRef, &boundsR );
        if ( width != NULL )
            *width = boundsR.right - boundsR.left;
        if ( height != NULL )
            *height = boundsR.bottom - boundsR.top;
    }
    else
        wxToolBarBase::DoGetSize( width, height );

#else
    wxToolBarBase::DoGetSize( width, height );
#endif
}

wxSize wxToolBar::DoGetBestSize() const
{
    int width, height;

    DoGetSize( &width, &height );

    return wxSize( width, height );
}

void wxToolBar::SetWindowStyleFlag( long style )
{
    wxToolBarBase::SetWindowStyleFlag( style );

#if wxMAC_USE_NATIVE_TOOLBAR
    if (m_macHIToolbarRef != NULL)
    {
        HIToolbarDisplayMode mode = kHIToolbarDisplayModeDefault;

        if ( style & wxTB_NOICONS )
            mode = kHIToolbarDisplayModeLabelOnly;
        else if ( style & wxTB_TEXT )
            mode = kHIToolbarDisplayModeIconAndLabel;
        else
            mode = kHIToolbarDisplayModeIconOnly;

       HIToolbarSetDisplayMode( (HIToolbarRef) m_macHIToolbarRef, mode );
    }
#endif
}

#if wxMAC_USE_NATIVE_TOOLBAR
bool wxToolBar::MacWantsNativeToolbar()
{
    return m_macUsesNativeToolbar;
}

bool wxToolBar::MacTopLevelHasNativeToolbar(bool *ownToolbarInstalled) const
{
    bool bResultV = false;

    if (ownToolbarInstalled != NULL)
        *ownToolbarInstalled = false;

    WindowRef tlw = MAC_WXHWND(MacGetTopLevelWindowRef());
    if (tlw != NULL)
    {
        HIToolbarRef curToolbarRef = NULL;
        OSStatus err = GetWindowToolbar( tlw, &curToolbarRef );
        bResultV = ((err == noErr) && (curToolbarRef != NULL));
        if (bResultV && (ownToolbarInstalled != NULL))
            *ownToolbarInstalled = (curToolbarRef == m_macHIToolbarRef);
    }

    return bResultV;
}

bool wxToolBar::MacInstallNativeToolbar(bool usesNative)
{
    bool bResult = false;

    if (usesNative && (m_macHIToolbarRef == NULL))
        return bResult;

    if (usesNative && ((GetWindowStyleFlag() & wxTB_VERTICAL) != 0))
        return bResult;

    WindowRef tlw = MAC_WXHWND(MacGetTopLevelWindowRef());
    if (tlw == NULL)
        return bResult;

    // check the existing toolbar
    HIToolbarRef curToolbarRef = NULL;
    OSStatus err = GetWindowToolbar( tlw, &curToolbarRef );
    if (err != noErr)
        curToolbarRef = NULL;

    m_macUsesNativeToolbar = usesNative;

    if (m_macUsesNativeToolbar)
    {
        // only install toolbar if there isn't one installed already
        if (curToolbarRef == NULL)
        {
            bResult = true;

            SetWindowToolbar( tlw, (HIToolbarRef) m_macHIToolbarRef );
            ShowHideWindowToolbar( tlw, true, false );
            ChangeWindowAttributes( tlw, kWindowToolbarButtonAttribute, 0 );
            SetAutomaticControlDragTrackingEnabledForWindow( tlw, true );

            Rect r = { 0, 0, 0, 0 };
            m_peer->SetRect( &r );
            SetSize( wxSIZE_AUTO_WIDTH, 0 );
            m_peer->SetVisibility( false, true );
            wxToolBarBase::Show( false );
        }
    }
    else
    {
        // only deinstall toolbar if this is the installed one
        if (m_macHIToolbarRef == curToolbarRef)
        {
            bResult = true;

            ShowHideWindowToolbar( tlw, false, false );
            ChangeWindowAttributes( tlw, 0, kWindowToolbarButtonAttribute );
            SetWindowToolbar( tlw, NULL );

            m_peer->SetVisibility( true, true );
        }
    }

    if (bResult)
        InvalidateBestSize();

// wxLogDebug( wxT("    --> [%lx] - result [%s]"), (long)this, bResult ? wxT("T") : wxT("F") );
    return bResult;
}
#endif

bool wxToolBar::Realize()
{
    if (m_tools.GetCount() == 0)
        return false;

    int maxWidth = 0;
    int maxHeight = 0;

    int maxToolWidth = 0;
    int maxToolHeight = 0;

    int x = m_xMargin + kwxMacToolBarLeftMargin;
    int y = m_yMargin + kwxMacToolBarTopMargin;

    int tw, th;
    GetSize( &tw, &th );

    // find the maximum tool width and height
    wxToolBarTool *tool;
    wxToolBarToolsList::compatibility_iterator node = m_tools.GetFirst();
    while ( node != NULL )
    {
        tool = (wxToolBarTool *) node->GetData();
        if ( tool != NULL )
        {
            wxSize  sz = tool->GetSize();

            if ( sz.x > maxToolWidth )
                maxToolWidth = sz.x;
            if ( sz.y > maxToolHeight )
                maxToolHeight = sz.y;
        }

        node = node->GetNext();
    }

    bool lastIsRadio = false;
    bool curIsRadio = false;

#if wxMAC_USE_NATIVE_TOOLBAR
    CFIndex currentPosition = 0;
    bool insertAll = false;
#endif

    node = m_tools.GetFirst();
    while ( node != NULL )
    {
        tool = (wxToolBarTool*) node->GetData();
        if ( tool == NULL )
        {
            node = node->GetNext();
            continue;
        }

        // set tool position:
        // for the moment just perform a single row/column alignment
        wxSize  cursize = tool->GetSize();
        if ( x + cursize.x > maxWidth )
            maxWidth = x + cursize.x;
        if ( y + cursize.y > maxHeight )
            maxHeight = y + cursize.y;

        if ( GetWindowStyleFlag() & wxTB_VERTICAL )
        {
            int x1 = x + ( maxToolWidth - cursize.x ) / 2;
            tool->SetPosition( wxPoint(x1, y) );
        }
        else
        {
            int y1 = y + ( maxToolHeight - cursize.y ) / 2;
            tool->SetPosition( wxPoint(x, y1) );
        }

        // update the item positioning state
        if ( GetWindowStyleFlag() & wxTB_VERTICAL )
            y += cursize.y + kwxMacToolSpacing;
        else
            x += cursize.x + kwxMacToolSpacing;

#if wxMAC_USE_NATIVE_TOOLBAR
        // install in native HIToolbar
        if ( m_macHIToolbarRef != NULL )
        {
            HIToolbarItemRef    hiItemRef = tool->GetToolbarItemRef();
            if ( hiItemRef != NULL )
            {
                if ( insertAll || (tool->GetIndex() != currentPosition) )
                {
                    OSStatus err = noErr;
                    if ( !insertAll )
                    {
                        insertAll = true;

                        // if this is the first tool that gets newly inserted or repositioned
                        // first remove all 'old' tools from here to the right, because of this
                        // all following tools will have to be reinserted (insertAll). i = 100 because there's
                        // no way to determine how many there are in a toolbar, so just a high number :-(
                        for ( CFIndex i = 100; i >= currentPosition; --i )
                        {
                            err = HIToolbarRemoveItemAtIndex( (HIToolbarRef) m_macHIToolbarRef, i );
                        }

                        if (err != noErr)
                        {
                            wxString errMsg = wxString::Format( wxT("HIToolbarRemoveItemAtIndex failed [%ld]"), (long)err );
                            wxFAIL_MSG( errMsg.c_str() );
                        }
                    }

                    err = HIToolbarInsertItemAtIndex( (HIToolbarRef) m_macHIToolbarRef, hiItemRef, currentPosition );
                    if (err != noErr)
                    {
                        wxString errMsg = wxString::Format( wxT("HIToolbarInsertItemAtIndex failed [%ld]"), (long)err );
                        wxFAIL_MSG( errMsg.c_str() );
                    }

                    tool->SetIndex( currentPosition );
                }

                currentPosition++;
            }
        }
#endif

        // update radio button (and group) state
        lastIsRadio = curIsRadio;
        curIsRadio = ( tool->IsButton() && (tool->GetKind() == wxITEM_RADIO) );

        if ( !curIsRadio )
        {
            if ( tool->IsToggled() )
                DoToggleTool( tool, true );
        }
        else
        {
            if ( !lastIsRadio )
            {
                if ( tool->Toggle( true ) )
                {
                    DoToggleTool( tool, true );
                }
            }
            else if ( tool->IsToggled() )
            {
                if ( tool->IsToggled() )
                    DoToggleTool( tool, true );

                wxToolBarToolsList::compatibility_iterator  nodePrev = node->GetPrevious();
                while ( nodePrev != NULL )
                {
                    wxToolBarToolBase   *toggleTool = nodePrev->GetData();
                    if ( (toggleTool == NULL) || !toggleTool->IsButton() || (toggleTool->GetKind() != wxITEM_RADIO) )
                        break;

                    if ( toggleTool->Toggle( false ) )
                        DoToggleTool( toggleTool, false );

                    nodePrev = nodePrev->GetPrevious();
                }
            }
        }

        node = node->GetNext();
    }

    if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
    {
        // if not set yet, only one row
        if ( m_maxRows <= 0 )
            SetRows( 1 );

        m_minWidth = maxWidth;
        maxWidth = tw;
        maxHeight += m_yMargin + kwxMacToolBarTopMargin;
        m_minHeight = m_maxHeight = maxHeight;
    }
    else
    {
        // if not set yet, have one column
        if ( (GetToolsCount() > 0) && (m_maxRows <= 0) )
            SetRows( GetToolsCount() );

        m_minHeight = maxHeight;
        maxHeight = th;
        maxWidth += m_xMargin + kwxMacToolBarLeftMargin;
        m_minWidth = m_maxWidth = maxWidth;
    }

#if 0
    // FIXME: should this be OSX-only?
    {
        bool wantNativeToolbar, ownToolbarInstalled;

        // attempt to install the native toolbar
        wantNativeToolbar = ((GetWindowStyleFlag() & wxTB_VERTICAL) == 0);
        MacInstallNativeToolbar( wantNativeToolbar );
        (void)MacTopLevelHasNativeToolbar( &ownToolbarInstalled );
        if (!ownToolbarInstalled)
        {
           SetSize( maxWidth, maxHeight );
           InvalidateBestSize();
        }
    }
#else
    SetSize( maxWidth, maxHeight );
    InvalidateBestSize();
#endif